With the partnership worth 82, Sangakkara's luck ran out when umpire Darrell Hair ruled he had nicked a Flintoff ball that left him.

Further analysis revealed it might only have flicked the top of his pad.

There was no doubt about the next two wickets, however, as Tharanga and Mahela Jayawardene got faint touches playing at deliveries wide of their body and the score was 86-4 after the first session.

England's purple form with the ball continued after lunch.

Four more catches were held in the slips and at gully - the highlight a diving effort by Strauss - as Sri Lanka's middle-order caved in.

Sanath Jayasuriya, who has been recalled to the team after retiring from Test cricket in April, made just four batting at number six when he fell to Flintoff's inspired spell.

And Chamara Kapugedera, the other man drafted in to strengthen the middle-order, also failed.

With the score 139-8, Sri Lanka were going nowhere, but initial respite came in the shape of a stand between Vaas and Malinga.

What is the meaning of purple form with the ball?

Purple is a colour.
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purple is the color of kings
thus regal
Yes; cf. "imperial purple"; thus, "unusually good" (especially in the light of the first Test).

Sports commentators like to indulge in purple prose.

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Remember Dune-II? Emperror's forces, Sardukars, were purple.
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